Carpet-fastener



No. 751.267. PATENTED'PEB. 2:, 1904'.

T. R. DIBHL. CARPET` FASTENER. APPLICATION FILED MAY 20, 1903. N0 MODEL.

Summa] UNITED STATES ateted February 1964:

PATENT OFFICE..4

CARPET-FASTENER.

SPECIFICATION forming part of Letters Patent No. 751,267, dated February 2, 1904. Application filed May 20, 1903. Serial No. 158,002. (No model.)

To all whom t may concern,.-

Be it known that I, THOMPSON R. DIEHL, a citizen of the United States, residing at Allentown, in the county of Lehigh and State of Pennsylvania, `have invented certain new and useful Improvements in Carpet-Fasteners, of which the following is a specification, reference being had therein to the accompanying drawings. A

This invention relates to an improvement in carpet-fasteners, and particularly to carpetfasteners to be used for fastening down staircarpets.

In the drawings, Figure 1 is aview showing fastening devices embodying my improvements in position upon a step. Fig. 2 is a side elevation of a fastening-piece. Fig. 3 shows in side elevationone of my fasteners being secured in position. Fig. 4 isan end view of the fastener when secured in position, showing the riser and tread of the step in section. Fig. 5 is a plan view ofthe fastener with its locking-arm thrown back, and Fig. 6 is a central longitudinal section of the fastener.

In the drawings, l represents the fastening device or screw having the head 2, to which is pivoted at 2 the arm of plate 3, which is adapted to hold down and secure the carpet in place. This plate or arm is preferably formed as shown in the drawings, having at its front end the straight under surface 4, adapted to bear upon the carpet and extending about half the length of the arm. From this point the under surface is bent upward, as shown at 4', as it is not desirable for the holding arm o'r plate to bear throughout its entire length upon the carpet.

5 is a pin or projection secured to the under surface 4 of the said arm and adapted to penetrate the carpet when the arm 3 is depressed and to prevent the lateral slipping of the carpet. p

The head 2 of the fastening device or screw l extends slightly above Vthe top of the arm or plate 3 when the latter is at right angles to the said screw or fastening device.

6 is a locking-plate having side walls 7 7, the top wall 8, and the end wall 9.V As shown, the top wall 8 does not extend the full length of the side walls 7 7 but is discontinued at 8. This locking-plate is pivoted at 10 to the plate or arm 3 and extends rearwardly, its side walls 7 7, top wall 8, and rear wall 9 inclosing the rear end ofV the holding arm or plate when the same is at right angles to the fastening device l.

1l is an aperture in the top wall 8 of the locking-plate adapted to receive the head 2 of the fastening device when the holding plate or arm is arranged at right angles to it. This head-piece serves not only to provide a bearing-surface for the pivot 2', but also to carry the securing device or thumb-screw 12, which is inserted in its end and which is adapted to secure or hold down the locking-plate. The head of this securing device 12 is longer than it is wide and is adapted when its long sides are parallel to the long Lside of the aperture 1l in the locking-plate to pass therethrough. It may then be turned at right angles, lso that the long sides of the thumb-screw are at right angles to and overlapping the long sides of the aperture through the locking arm or plate, and thereby hold the plate from swinging up about the pivot 10.

The end 9 of the locking arm or plate is formed, preferably, as shown, with a downwarddepending projection 13, having its under edges 14 14 inclined to each other at an angle. This downward projection of the end wall with its inclined end surfaces is adapted to fit into the angle between the horizontal and vertical members of the step and to rest upon them when the fastening device is in position. It will be noted that the lowermost point of the projection of the end wall 9 is in a plane somewhat beneath the plane of the under level surface of the arm or plate 3 when the fastening device is secured in position.

In operation the device is inserted at the point of intersection between the riser and tread of the step, as shown` in Fig. 3. It will be noted that because of the pivotal connections of the various members of the fastener the arms 3 and 6 serve practically as a handle for driving the fastening device or screw `l into position. After the fastening device has been inserted in the step the carpet is stretched to` the desired position, and then the holding arm or plate 3 is forced down upon the carpet, the locking-arm 6 serving as a lever through which force may be applied for forcing the point 5 through the carpet. The locking arm or plate is then swung backward on its pivot until the projection 13 of its cnd engages with the step. The securing device or set-screw 12 will then project sufficiently through the aperture l1 to permit the set-screw to be turned, thereby holding the locking arm or plate in position. If any pressure is now applied to the forward end of the arm 3, as by the sudden jerk of the carpet, the strain caused thereby will be transmitted through the'fastening device and will be received by the projection 13 on the locking-plate bearing Aagainst the surface of the riser and tread of the step, and therefore no lateral or bending strain will be imparted to the fastening device .or screw l.

.'I do not limit myself to the specific form vof device herein shown, as numerous other ways may suggest themselves for accomplishing the same results which come within the spirit of my invention. For example, other means may be devised for securing the lock- Y ing arm or plate to the holding arm or plate Y or plate in place,

for the carpet and other means for holding the locking-plate in position after its adjustment.

, I believe myself to be the first to have provided a capet-fastening device in which the locking device or arm for the carpet-holding plate or arm is adapted to receive from the latter arm the strains which it receives from the carpet and transmit them to the riser and tread of the step, and, furthermore, that I am the first to devise a carpet-fastening device in which the holder for the carpet may be used as a driving device or handle for securing'the fastening device in position on the step.

What I claim isl. The carpet-holding plate or arm, means for fastening the same in position, the locking arm or plate having one end adapted to bear upon the said holding arm or plate and the other adapted to bear upon the surface or surfaces to which the-said holding arm or plate is secured, and means for holding the said locking arm or plate in place, substantially as set forth.

2. The carpet-holding plate or arm, fastening means for the same, the locking arm or plate having one end adapted to engage with the surface or surfaces to which the said holding arm or plate is secured and the other end pivoted to the said holding arm or plate, and means for holding the said locking arm substantially as set forth.

3. In a carpet-fastening device, the combination of the holding arm or plate for the carpet, the fastening device pivoted thereto, the locking arm or plate likewise pivoted to the holding arm or plate, and means for holding' the locking-arm in place, substantially as set forth.

4. In a carpet-fastening device, the combination of the holding arm or plate for the carpet, the fastening device pivoted thereto, the locking arm or plate pivoted to said holding arm or plate at one end, the other end being adapted to bear upon the surface or surfaces to which the said holding arm or plate is secured, and means for holding said locking arm or plate in place, substantially as set'forth.

5. In a carpet-fastening device, the combination of the holding arm or plate for the carpet, the fastening device pivoted thereto, the locking arm or plate pivoted to the said hold-` ing arm or plate, and the thumb-screw on the said fastening device for securing said locking plate or arm in place, substantially as described.

6. In a carpet-fastening device, the combination of the carpet-holding arm or plate, the fastening device pivoted thereto, the locking arm or plate and the securing device on the fastening device for holding the said locking arm or plate in place, substantially as set forth.

7. In a carpet-fastening device, the combination of the carpet-holding arm or plate, the fastening device pivoted thereto, the locking arm or plate pivoted to the said arm or plate, and the thumb-screw in the end of the said fastening device adapted to secure the said locking arm or plate in place, substantially as described.

' 8. In a carpet-fastening device, the combination of the carpet-holding arm or plate, the fastening device therefor, the locking arm or plate bearing at its forward end on the said holding arm or plate and having a rear end, the under surfaces of which are disposed at an angle to each other and adapted to bear upon the surfaces to which the holding arm or plate is secured, substantially as set forth.V

9. In a carpet-fastening device, a carpetholding plate or arm having a screw pivoted thereto for fastening the said arm in position, and means for locking said arm atright angles to the screw, substantially as set forth.

10. In a carpet-holding device, the combination of a carpet-holding plate or arm, a fastening device pivoted thereto, and the plate or arm adapted to fit over the end of the said holding arm or plate to which the fastening device is pivoted and to conceal the pivotal connection from view, substantially as set forth.

11. In a carpet-fastening device, the combination of a carpet-holding plate or arm, a fastening device therefor, and a cover adapted to inclose and conceal from view the connection between said holding plate or arm and its fastening device, substantially as set forth.

l2. In a device for holding down astair-carpet, in combination with theriser and tread of a step, a carpet-holding arm or plate having IOO IIO

locking means adapted to bear downward upon said arm and to engage with the surfaces of the said riser and tread, substantially as set forth.

13. In a oarpet-fastener, the combination of a carpet-holding arm or plate adapted to bear downward upon the carpet, a locking-arm adapted to lie above the carpet and to bear downward upon the holding-arm, means for fastening said arms to the floor, and means for positively locking said arms together, substantially as set forth.

14. In a carpet-fastener, a carpet-holdingplate or arm havingafastening device pivoted thereto and means for looking said arm in I5 working position at an angle to the fastening device, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

THOMPSON R. DIEHL. 

